Where is Robert Lopez now?

Robert Lopez was 7 when he saw his first Broadway show, A Chorus Line. By fifth grade, he had been in a school production of West Side Story. At 11, he wrote his first opening number, about kids getting into a high school for gifted students. "That was the moment I knew what I wanted to do. It was magic," recalled the Greenwich Village native.

When Mr. Lopez arrived at Yale, he majored in English and avoided any class that could prepare him for a career in law or medicine so he wouldn't be tempted to fall back on something. "I had no career options," he said.

Supporting himself in the city with temp jobs where he'd "steal office supplies and use the phone," Mr. Lopez moved back in with his parents for four years while he participated in the BMI Lehman Engel Musical Theatre Workshop for songwriters. The result: Avenue Q.

Co-writing Avenue Q won Mr. Lopez his first Tony Award, for best score in 2004, the year Avenue Q was named best musical. Tonys two and three came last year for co-writing the book and score of The Book of Mormon. He picked up a Grammy last month for Mormon's cast album.

Success means it's never been more hectic at the Brooklyn home Mr. Lopez shares with his wife (fellow composer Kristen Anderson-Lopez) and their two young daughters. "My one fear," Mr. Lopez said, "is, will there be too many projects to juggle well while being a good father and husband?"